Search a number
-
+
2020210221 = 32329278409
BaseRepresentation
bin111100001101001…
…1111011000101101
312012210101022102210
41320122133120231
513114133211341
6532244041033
7101030334501
oct17032373055
95183338383
102020210221
119473a0927
12484693179
13262702383
1415243a301
15bc555c16
hex7869f62d

2020210221 has 8 divisors (see below), whose sum is σ = 2810727360. Its totient is φ = 1288249952.

The previous prime is 2020210187. The next prime is 2020210223. The reversal of 2020210221 is 1220120202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2020210221 - 211 = 2020208173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2020210197 and 2020210206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020210223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14639136 + ... + 14639273.

It is an arithmetic number, because the mean of its divisors is an integer number (351340920).

Almost surely, 22020210221 is an apocalyptic number.

It is an amenable number.

2020210221 is a deficient number, since it is larger than the sum of its proper divisors (790517139).

2020210221 is a wasteful number, since it uses less digits than its factorization.

2020210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29278435.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2020210221 is about 44946.7487255752. The cubic root of 2020210221 is about 1264.1507151258.

Adding to 2020210221 its reverse (1220120202), we get a palindrome (3240330423).

The spelling of 2020210221 in words is "two billion, twenty million, two hundred ten thousand, two hundred twenty-one".

Divisors: 1 3 23 69 29278409 87835227 673403407 2020210221